UML Training Classes in Mesquite, Texas
Learn UML in Mesquite, Texas and surrounding areas via our hands-on, expert led courses. All of our classes either are offered on an onsite, online or public instructor led basis. Here is a list of our current UML related training offerings in Mesquite, Texas: UML Training
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- Object-Oriented Programming in C# Rev. 6.1 
 17 November, 2025 - 21 November, 2025
- RED HAT ENTERPRISE LINUX SYSTEMS ADMIN II 
 8 December, 2025 - 11 December, 2025
- Introduction to Spring 6, Spring Boot 3, and Spring REST 
 15 December, 2025 - 19 December, 2025
- Fast Track to Java 17 and OO Development 
 8 December, 2025 - 12 December, 2025
- RED HAT ENTERPRISE LINUX SYSTEMS ADMIN I 
 3 November, 2025 - 7 November, 2025
- See our complete public course listing 
Blog Entries publications that: entertain, make you think, offer insight
Toshiba has released a new line of solid-state drives (SSD) using 19 nanometers, which is currently the industry’s smallest lithography process.
The lineup will include mini-SATA and 2.5-inch form factors along with drives in 7mm and 9.5mm heights. All drives will use the most current serial ATA 6Gbps interface protocol.
A whole new world was thrown wide open with the advent of the concept of open source. The biggest advantage of open source projects is the easy availability of the source code and also the rights to tweak it or modify the code as we deem fit.
Listed below are some top open source projects that are making waves with their innovative ideas at this moment.
ProjectLibre
	 Project Libre is the open source replacement of Microsoft Project. It was one among the top 10 open source projects of 2013. With over 6 million downloads; it has most certainly captured the imagination of people around the world. Details of project Libre could be found at http://www.projectlibre.org/ . Project Libre has separate release for mainframes. It also has a web based version which further increases its overall appeal. One of the main advantages is that it has a list of tasks that can be tracked to closure. It can also be used in conjunction with LibreOffice to provide a great set of tools to the team leaders.
Project Libre is the open source replacement of Microsoft Project. It was one among the top 10 open source projects of 2013. With over 6 million downloads; it has most certainly captured the imagination of people around the world. Details of project Libre could be found at http://www.projectlibre.org/ . Project Libre has separate release for mainframes. It also has a web based version which further increases its overall appeal. One of the main advantages is that it has a list of tasks that can be tracked to closure. It can also be used in conjunction with LibreOffice to provide a great set of tools to the team leaders.
Diaspora
	 Python and Ruby, each with roots going back into the 1990s, are two of the most popular interpreted programming languages today. Ruby is most widely known as the language in which the ubiquitous Ruby on Rails web application framework is written, but it also has legions of fans that use it for things that have nothing to do with the web. Python is a big hit in the numerical and scientific computing communities at the present time, rapidly displacing such longtime stalwarts as R when it comes to these applications. It too, however, is also put to a myriad of other uses, and the two languages probably vie for the title when it comes to how flexible their users find them.
Python and Ruby, each with roots going back into the 1990s, are two of the most popular interpreted programming languages today. Ruby is most widely known as the language in which the ubiquitous Ruby on Rails web application framework is written, but it also has legions of fans that use it for things that have nothing to do with the web. Python is a big hit in the numerical and scientific computing communities at the present time, rapidly displacing such longtime stalwarts as R when it comes to these applications. It too, however, is also put to a myriad of other uses, and the two languages probably vie for the title when it comes to how flexible their users find them.
A Matter of Personality...
	
	That isn't to say that there aren't some major, immediately noticeable, differences between the two programming tongues. Ruby is famous for its flexibility and eagerness to please; it is seen by many as a cleaned-up continuation of Perl's "Do What I Mean" philosophy, whereby the interpreter does its best to figure out the meaning of evening non-canonical syntactic constructs. In fact, the language's creator, Yukihiro Matsumoto, chose his brainchild's name in homage to that earlier language's gemstone-inspired moniker.
	
	Python, on the other hand, takes a very different tact. In a famous Python Enhancement Proposal called "The Zen of Python," longtime Pythonista Tim Peters declared it to be preferable that there should only be a single obvious way to do anything. Python enthusiasts and programmers, then, generally prize unanimity of style over syntactic flexibility compared to those who choose Ruby, and this shows in the code they create. Even Python's whitespace-sensitive parsing has a feel of lending clarity through syntactical enforcement that is very much at odds with the much fuzzier style of typical Ruby code.
	
	For example, Python's much-admired list comprehension feature serves as the most obvious way to build up certain kinds of lists according to initial conditions:
	
	a = [x**3 for x in range(10,20)]
	b = [y for y in a if y % 2 == 0]
	
	first builds up a list of the cubes of all of the numbers between 10 and 19 (yes, 19), assigning the result to 'a'. A second list of those elements in 'a' which are even is then stored in 'b'. One natural way to do this in Ruby is probably:
	
	a = (10..19).map {|x| x ** 3}
	b = a.select {|y| y.even?}
	
	but there are a number of obvious alternatives, such as:
	
	a = (10..19).collect do |x|
	x ** 3
	end
	
	b = a.find_all do |y|
	y % 2 == 0
	end
	
	It tends to be a little easier to come up with equally viable, but syntactically distinct, solutions in Ruby compared to Python, even for relatively simple tasks like the above. That is not to say that Ruby is a messy language, either; it is merely that it is somewhat freer and more forgiving than Python is, and many consider Python's relative purity in this regard a real advantage when it comes to writing clear, easily understandable code.
And Somewhat One of Performance
	Over time, companies are migrating from COBOL to the latest standard of C# solutions due to reasons such as cumbersome deployment processes, scarcity of trained developers, platform dependencies, increasing maintenance fees. Whether a company wants to migrate to reporting applications, operational infrastructure, or management support systems, shifting from COBOL to C# solutions can be time-consuming and highly risky, expensive, and complicated. However, the following four techniques can help companies reduce the complexity and risk around their modernization efforts. 
	
	All COBOL to C# Solutions are Equal 
	
	It can be daunting for a company to sift through a set of sophisticated services and tools on the market to boost their modernization efforts. Manual modernization solutions often turn into an endless nightmare while the automated ones are saturated with solutions that generate codes that are impossible to maintain and extend once the migration is over. However, your IT department can still work with tools and services and create code that is easier to manage if it wants to capitalize on technologies such as DevOps. 
	
	Narrow the Focus 
	
	Most legacy systems are incompatible with newer systems. For years now, companies have passed legacy systems to one another without considering functional relationships and proper documentation features. However, a detailed analysis of databases and legacy systems can be useful in decision-making and risk mitigation in any modernization effort. It is fairly common for companies to uncover a lot of unused and dead code when they analyze their legacy inventory carefully. Those discoveries, however can help reduce the cost involved in project implementation and the scope of COBOL to C# modernization. Research has revealed that legacy inventory analysis can result in a 40% reduction of modernization risk. Besides making the modernization effort less complex, trimming unused and dead codes and cost reduction, companies can gain a lot more from analyzing these systems. 
	
	Understand Thyself 
	
	For most companies, the legacy system entails an entanglement of intertwined code developed by former employees who long ago left the organization. The developers could apply any standards and left behind little documentation, and this made it extremely risky for a company to migrate from a COBOL to C# solution. In 2013, CIOs teamed up with other IT stakeholders in the insurance industry in the U.S to conduct a study that found that only 18% of COBOL to C# modernization projects complete within the scheduled period. Further research revealed that poor legacy application understanding was the primary reason projects could not end as expected. 
	
	Furthermore, using the accuracy of the legacy system for planning and poor understanding of the breadth of the influence of the company rules and policies within the legacy system are some of the risks associated with migrating from COBOL to C# solutions. The way an organization understands the source environment could also impact the ability to plan and implement a modernization project successfully. However, accurate, in-depth knowledge about the source environment can help reduce the chances of cost overrun since workers understand the internal operations in the migration project. That way, companies can understand how time and scope impact the efforts required to implement a plan successfully. 
	
	Use of Sequential Files 
	
	Companies often use sequential files as an intermediary when migrating from COBOL to C# solution to save data. Alternatively, sequential files can be used for report generation or communication with other programs. However, software mining doesn’t migrate these files to SQL tables; instead, it maintains them on file systems. Companies can use data generated on the COBOL system to continue to communicate with the rest of the system at no risk. Sequential files also facilitate a secure migration path to advanced standards such as MS Excel. 
	
	Modern systems offer companies a range of portfolio analysis that allows for narrowing down their scope of legacy application migration. Organizations may also capitalize on it to shed light on migration rules hidden in the ancient legacy environment. COBOL to C# modernization solution uses an extensible and fully maintainable code base to develop functional equivalent target application. Migration from COBOL solution to C# applications involves language translation, analysis of all artifacts required for modernization, system acceptance testing, and database and data transfer. While it’s optional, companies could need improvements such as coding improvements, SOA integration, clean up, screen redesign, and cloud deployment.
Tech Life in Texas
| Company Name | City | Industry | Secondary Industry | 
|---|---|---|---|
| Dr Pepper Snapple Group | Plano | Manufacturing | Nonalcoholic Beverages | 
| Western Refining, Inc. | El Paso | Energy and Utilities | Gasoline and Oil Refineries | 
| Frontier Oil Corporation | Dallas | Manufacturing | Chemicals and Petrochemicals | 
| ConocoPhillips | Houston | Energy and Utilities | Gasoline and Oil Refineries | 
| Dell Inc | Round Rock | Computers and Electronics | Computers, Parts and Repair | 
| Enbridge Energy Partners, L.P. | Houston | Transportation and Storage | Transportation & Storage Other | 
| GameStop Corp. | Grapevine | Retail | Retail Other | 
| Fluor Corporation | Irving | Business Services | Management Consulting | 
| Kimberly-Clark Corporation | Irving | Manufacturing | Paper and Paper Products | 
| Exxon Mobil Corporation | Irving | Energy and Utilities | Gasoline and Oil Refineries | 
| Plains All American Pipeline, L.P. | Houston | Energy and Utilities | Gasoline and Oil Refineries | 
| Cameron International Corporation | Houston | Energy and Utilities | Energy and Utilities Other | 
| Celanese Corporation | Irving | Manufacturing | Chemicals and Petrochemicals | 
| HollyFrontier Corporation | Dallas | Energy and Utilities | Gasoline and Oil Refineries | 
| Kinder Morgan, Inc. | Houston | Energy and Utilities | Gas and Electric Utilities | 
| Marathon Oil Corporation | Houston | Energy and Utilities | Gasoline and Oil Refineries | 
| United Services Automobile Association | San Antonio | Financial Services | Personal Financial Planning and Private Banking | 
| J. C. Penney Company, Inc. | Plano | Retail | Department Stores | 
| Energy Transfer Partners, L.P. | Dallas | Energy and Utilities | Energy and Utilities Other | 
| Atmos Energy Corporation | Dallas | Energy and Utilities | Alternative Energy Sources | 
| National Oilwell Varco Inc. | Houston | Manufacturing | Manufacturing Other | 
| Tesoro Corporation | San Antonio | Manufacturing | Chemicals and Petrochemicals | 
| Halliburton Company | Houston | Energy and Utilities | Energy and Utilities Other | 
| Flowserve Corporation | Irving | Manufacturing | Tools, Hardware and Light Machinery | 
| Commercial Metals Company | Irving | Manufacturing | Metals Manufacturing | 
| EOG Resources, Inc. | Houston | Energy and Utilities | Gasoline and Oil Refineries | 
| Whole Foods Market, Inc. | Austin | Retail | Grocery and Specialty Food Stores | 
| Waste Management, Inc. | Houston | Energy and Utilities | Waste Management and Recycling | 
| CenterPoint Energy, Inc. | Houston | Energy and Utilities | Gas and Electric Utilities | 
| Valero Energy Corporation | San Antonio | Manufacturing | Chemicals and Petrochemicals | 
| FMC Technologies, Inc. | Houston | Energy and Utilities | Alternative Energy Sources | 
| Calpine Corporation | Houston | Energy and Utilities | Gas and Electric Utilities | 
| Texas Instruments Incorporated | Dallas | Computers and Electronics | Semiconductor and Microchip Manufacturing | 
| SYSCO Corporation | Houston | Wholesale and Distribution | Grocery and Food Wholesalers | 
| BNSF Railway Company | Fort Worth | Transportation and Storage | Freight Hauling (Rail and Truck) | 
| Affiliated Computer Services, Incorporated (ACS), a Xerox Company | Dallas | Software and Internet | E-commerce and Internet Businesses | 
| Tenet Healthcare Corporation | Dallas | Healthcare, Pharmaceuticals and Biotech | Hospitals | 
| XTO Energy Inc. | Fort Worth | Energy and Utilities | Gasoline and Oil Refineries | 
| Group 1 Automotive | Houston | Retail | Automobile Dealers | 
| ATandT | Dallas | Telecommunications | Telephone Service Providers and Carriers | 
| Anadarko Petroleum Corporation | Spring | Energy and Utilities | Gasoline and Oil Refineries | 
| Apache Corporation | Houston | Energy and Utilities | Gasoline and Oil Refineries | 
| Dean Foods Company | Dallas | Manufacturing | Food and Dairy Product Manufacturing and Packaging | 
| American Airlines | Fort Worth | Travel, Recreation and Leisure | Passenger Airlines | 
| Baker Hughes Incorporated | Houston | Energy and Utilities | Gasoline and Oil Refineries | 
| Continental Airlines, Inc. | Houston | Travel, Recreation and Leisure | Passenger Airlines | 
| RadioShack Corporation | Fort Worth | Computers and Electronics | Consumer Electronics, Parts and Repair | 
| KBR, Inc. | Houston | Government | International Bodies and Organizations | 
| Spectra Energy Partners, L.P. | Houston | Energy and Utilities | Gas and Electric Utilities | 
| Energy Future Holdings | Dallas | Energy and Utilities | Energy and Utilities Other | 
| Southwest Airlines Corporation | Dallas | Transportation and Storage | Air Couriers and Cargo Services | 
training details locations, tags and why hsg
The Hartmann Software Group understands these issues and addresses them and others during any training engagement. Although no IT educational institution can guarantee career or application development success, HSG can get you closer to your goals at a far faster rate than self paced learning and, arguably, than the competition. Here are the reasons why we are so successful at teaching:
- Learn from the experts.  
                                - We have provided software development and other IT related training to many major corporations in Texas since 2002.
- Our educators have years of consulting and training experience; moreover, we require each trainer to have cross-discipline expertise i.e. be Java and .NET experts so that you get a broad understanding of how industry wide experts work and think.
 
- Discover tips and tricks about UML programming
- Get your questions answered by easy to follow, organized UML experts
- Get up to speed with vital UML programming tools
- Save on travel expenses by learning right from your desk or home office. Enroll in an online instructor led class. Nearly all of our classes are offered in this way.
- Prepare to hit the ground running for a new job or a new position
- See the big picture and have the instructor fill in the gaps
- We teach with sophisticated learning tools and provide excellent supporting course material
- Books and course material are provided in advance
- Get a book of your choice from the HSG Store as a gift from us when you register for a class
- Gain a lot of practical skills in a short amount of time
- We teach what we know…software
- We care…














